wannacry | be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

Analysis

max time kernel
146s
max time network
137s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
11-11-2024 02:18

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General

Target

WannaCry.exe
Size

224KB
MD5

5c7fb0927db37372da25f270708103a2
SHA1

120ed9279d85cbfa56e5b7779ffa7162074f7a29
SHA256

be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844
SHA512

a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206
SSDEEP

3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Score

10^/10

wannacry defense_evasion discovery execution impact persistence ransomware spyware stealer worm

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Family

wannacry

Ransom Note

Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �

Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\~SDB41B.tmp	WannaCry.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\~SDB422.tmp	WannaCry.exe

Executes dropped EXE 4 IoCs

pid	Process
4492	!WannaDecryptor!.exe
3644	!WannaDecryptor!.exe
3036	!WannaDecryptor!.exe
1744	!WannaDecryptor!.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Update Task Scheduler = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\WannaCry.exe\" /r"	WannaCry.exe

Sets desktop wallpaper using registry 2 TTPs 1 IoCs

ransomware

Defacement

T1491

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Desktop\\!WannaCryptor!.bmp"	!WannaDecryptor!.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 14 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cscript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WannaCry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WMIC.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	!WannaDecryptor!.exe

Kills process with taskkill 4 IoCs

evasion

pid	Process
2720	taskkill.exe
4568	taskkill.exe
2208	taskkill.exe
3332	taskkill.exe

Suspicious use of AdjustPrivilegeToken 49 IoCs

description	pid	Process
Token: SeDebugPrivilege	4568	taskkill.exe
Token: SeDebugPrivilege	2208	taskkill.exe
Token: SeDebugPrivilege	2720	taskkill.exe
Token: SeDebugPrivilege	3332	taskkill.exe
Token: SeIncreaseQuotaPrivilege	1988	WMIC.exe
Token: SeSecurityPrivilege	1988	WMIC.exe
Token: SeTakeOwnershipPrivilege	1988	WMIC.exe
Token: SeLoadDriverPrivilege	1988	WMIC.exe
Token: SeSystemProfilePrivilege	1988	WMIC.exe
Token: SeSystemtimePrivilege	1988	WMIC.exe
Token: SeProfSingleProcessPrivilege	1988	WMIC.exe
Token: SeIncBasePriorityPrivilege	1988	WMIC.exe
Token: SeCreatePagefilePrivilege	1988	WMIC.exe
Token: SeBackupPrivilege	1988	WMIC.exe
Token: SeRestorePrivilege	1988	WMIC.exe
Token: SeShutdownPrivilege	1988	WMIC.exe
Token: SeDebugPrivilege	1988	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1988	WMIC.exe
Token: SeRemoteShutdownPrivilege	1988	WMIC.exe
Token: SeUndockPrivilege	1988	WMIC.exe
Token: SeManageVolumePrivilege	1988	WMIC.exe
Token: 33	1988	WMIC.exe
Token: 34	1988	WMIC.exe
Token: 35	1988	WMIC.exe
Token: 36	1988	WMIC.exe
Token: SeIncreaseQuotaPrivilege	1988	WMIC.exe
Token: SeSecurityPrivilege	1988	WMIC.exe
Token: SeTakeOwnershipPrivilege	1988	WMIC.exe
Token: SeLoadDriverPrivilege	1988	WMIC.exe
Token: SeSystemProfilePrivilege	1988	WMIC.exe
Token: SeSystemtimePrivilege	1988	WMIC.exe
Token: SeProfSingleProcessPrivilege	1988	WMIC.exe
Token: SeIncBasePriorityPrivilege	1988	WMIC.exe
Token: SeCreatePagefilePrivilege	1988	WMIC.exe
Token: SeBackupPrivilege	1988	WMIC.exe
Token: SeRestorePrivilege	1988	WMIC.exe
Token: SeShutdownPrivilege	1988	WMIC.exe
Token: SeDebugPrivilege	1988	WMIC.exe
Token: SeSystemEnvironmentPrivilege	1988	WMIC.exe
Token: SeRemoteShutdownPrivilege	1988	WMIC.exe
Token: SeUndockPrivilege	1988	WMIC.exe
Token: SeManageVolumePrivilege	1988	WMIC.exe
Token: 33	1988	WMIC.exe
Token: 34	1988	WMIC.exe
Token: 35	1988	WMIC.exe
Token: 36	1988	WMIC.exe
Token: SeBackupPrivilege	4548	vssvc.exe
Token: SeRestorePrivilege	4548	vssvc.exe
Token: SeAuditPrivilege	4548	vssvc.exe

Suspicious use of SetWindowsHookEx 8 IoCs

pid	Process
4492	!WannaDecryptor!.exe
4492	!WannaDecryptor!.exe
3644	!WannaDecryptor!.exe
3644	!WannaDecryptor!.exe
3036	!WannaDecryptor!.exe
3036	!WannaDecryptor!.exe
1744	!WannaDecryptor!.exe
1744	!WannaDecryptor!.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 3276 wrote to memory of 2552	3276	WannaCry.exe	84
PID 3276 wrote to memory of 2552	3276	WannaCry.exe	84
PID 3276 wrote to memory of 2552	3276	WannaCry.exe	84
PID 2552 wrote to memory of 1976	2552	cmd.exe	86
PID 2552 wrote to memory of 1976	2552	cmd.exe	86
PID 2552 wrote to memory of 1976	2552	cmd.exe	86
PID 3276 wrote to memory of 4492	3276	WannaCry.exe	89
PID 3276 wrote to memory of 4492	3276	WannaCry.exe	89
PID 3276 wrote to memory of 4492	3276	WannaCry.exe	89
PID 3276 wrote to memory of 2720	3276	WannaCry.exe	90
PID 3276 wrote to memory of 2720	3276	WannaCry.exe	90
PID 3276 wrote to memory of 2720	3276	WannaCry.exe	90
PID 3276 wrote to memory of 4568	3276	WannaCry.exe	91
PID 3276 wrote to memory of 4568	3276	WannaCry.exe	91
PID 3276 wrote to memory of 4568	3276	WannaCry.exe	91
PID 3276 wrote to memory of 2208	3276	WannaCry.exe	92
PID 3276 wrote to memory of 2208	3276	WannaCry.exe	92
PID 3276 wrote to memory of 2208	3276	WannaCry.exe	92
PID 3276 wrote to memory of 3332	3276	WannaCry.exe	93
PID 3276 wrote to memory of 3332	3276	WannaCry.exe	93
PID 3276 wrote to memory of 3332	3276	WannaCry.exe	93
PID 3276 wrote to memory of 3644	3276	WannaCry.exe	106
PID 3276 wrote to memory of 3644	3276	WannaCry.exe	106
PID 3276 wrote to memory of 3644	3276	WannaCry.exe	106
PID 3276 wrote to memory of 1632	3276	WannaCry.exe	107
PID 3276 wrote to memory of 1632	3276	WannaCry.exe	107
PID 3276 wrote to memory of 1632	3276	WannaCry.exe	107
PID 1632 wrote to memory of 3036	1632	cmd.exe	109
PID 1632 wrote to memory of 3036	1632	cmd.exe	109
PID 1632 wrote to memory of 3036	1632	cmd.exe	109
PID 3276 wrote to memory of 1744	3276	WannaCry.exe	111
PID 3276 wrote to memory of 1744	3276	WannaCry.exe	111
PID 3276 wrote to memory of 1744	3276	WannaCry.exe	111
PID 3036 wrote to memory of 2336	3036	!WannaDecryptor!.exe	112
PID 3036 wrote to memory of 2336	3036	!WannaDecryptor!.exe	112
PID 3036 wrote to memory of 2336	3036	!WannaDecryptor!.exe	112
PID 2336 wrote to memory of 1988	2336	cmd.exe	114
PID 2336 wrote to memory of 1988	2336	cmd.exe	114
PID 2336 wrote to memory of 1988	2336	cmd.exe	114

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\WannaCry.exe
"C:\Users\Admin\AppData\Local\Temp\WannaCry.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3276
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c 296361731291513.bat
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2552
- - C:\Windows\SysWOW64\cscript.exe
    cscript //nologo c.vbs
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1976
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe f
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:4492
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im MSExchange*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2720
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im Microsoft.Exchange.*
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4568
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlserver.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2208
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /f /im sqlwriter.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:3332
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe c
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:3644
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c start /b !WannaDecryptor!.exe v
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1632
- - C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    !WannaDecryptor!.exe v
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3036
  - - C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
      4⤵
      System Location Discovery: System Language Discovery
      Suspicious use of WriteProcessMemory
      PID:2336
    - - C:\Windows\SysWOW64\Wbem\WMIC.exe
        
        wmic shadowcopy delete
        5⤵
        System Location Discovery: System Language Discovery
        Suspicious use of AdjustPrivilegeToken
        
        PID:1988
- C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
  !WannaDecryptor!.exe
  2⤵
  - Executes dropped EXE
  - Sets desktop wallpaper using registry
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  PID:1744

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4548

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Windows Management Instrumentation

T1047

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Defacement

T1491

Inhibit System Recovery

T1490

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Downloads

C:\Users\Admin\AppData\Local\Temp\!Please Read Me!.txt

Filesize
797B

MD5
afa18cf4aa2660392111763fb93a8c3d

SHA1
c219a3654a5f41ce535a09f2a188a464c3f5baf5

SHA256
227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

SHA512
4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

Download Submit
C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk

Filesize
1KB

MD5
36d8ecde5bbdef1cbf46437af67154aa

SHA1
2c59131459020d78d46f39dec7d2c3831c40c778

SHA256
0d038d43417ec247c314112eb0beac8a1d42e403f417dd3e64c1b8eefdd9b777

SHA512
1aba1246ad0748dc7bbaa0ef967a99fabeb20c71278446f440262312accf29691a2d1987fd71db1460738065cc2008a63011862aa9d0d403e4cc8806abbc1056

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
0c243e0d26aae630d0dadaff456b556c

SHA1
691ed2ce5075d99bd3ce132bf3c8029018aed808

SHA256
9707e4af48c4ce780d4466163d94bf52850d54268444d1ffa0000646b98cb442

SHA512
c0c1067ea1735e701b41c3b79e4427876e96634aded8ad250ccf2d5c27b126b94239e2f8552e4acce6d92cdc9b020df873b0e28c153772ff619114449a9a07f2

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
29d45e1648c69cc5b6b80a8c59ddc07d

SHA1
3323909c4cd15e8c8b238c5cd9f91223adc474d7

SHA256
87f02b455fa58589b331f92ee2ace6d4254a7decfcef225cd9e8110de87e9a55

SHA512
fd875a59a1ee1c9afa0d6bae578e673027ed300bba7782f4b5e84071210b513536bc34737be0b5e5312bce7fb6e5023b4faa0ff640a4bd91c4f2140c85362474

Download Submit
C:\Users\Admin\AppData\Local\Temp\00000000.res

Filesize
136B

MD5
a5841f659e66038cc562c02943750b9b

SHA1
9a2c31f5e8895662b5f6903f49a6870a14404051

SHA256
db7e5dc532e40607a9b625340d12aeeff3bd46e3520eb35ab96295b5de46f5d5

SHA512
3c54a37f5fcb38eebb15b347edde7af4f68c3feba7a2fdf449e5ea2119432f332b195d47380abbae13cda595b1c337ac001dc16e8049392c9fe2c24779429651

Download Submit
C:\Users\Admin\AppData\Local\Temp\296361731291513.bat

Filesize
336B

MD5
3540e056349c6972905dc9706cd49418

SHA1
492c20442d34d45a6d6790c720349b11ec591cde

SHA256
73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc

SHA512
c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.vbs

Filesize
219B

MD5
5f6d40ca3c34b470113ed04d06a88ff4

SHA1
50629e7211ae43e32060686d6be17ebd492fd7aa

SHA256
0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1

SHA512
4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35

Download Submit
C:\Users\Admin\AppData\Local\Temp\c.wry

Filesize
628B

MD5
5030a1ba48977e4188bcb016a95fceae

SHA1
9393e77808495ca6ff9db47159857384fe40e808

SHA256
05ef87863d6dc286742af3a6b0e910c9e8b3dd914920e50317c08d12246f2217

SHA512
f8bcbfc5c74dce5b38ef96605a4fdcbebfdc035481dbfec64e58bd5c1caa55f739a705d119c380c83176ea09affb1f44d71108b38039cfbf39718b59a78ad9bc

Download Submit
C:\Users\Admin\AppData\Local\Temp\m.wry

Filesize
42KB

MD5
980b08bac152aff3f9b0136b616affa5

SHA1
2a9c9601ea038f790cc29379c79407356a3d25a3

SHA256
402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

SHA512
100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

Download Submit
C:\Users\Admin\AppData\Local\Temp\u.wry

Filesize
236KB

MD5
cf1416074cd7791ab80a18f9e7e219d9

SHA1
276d2ec82c518d887a8a3608e51c56fa28716ded

SHA256
78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

SHA512
0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

Download Submit
memory/3276-7-0x0000000010000000-0x0000000010012000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads